Well it's not always power boats. Today I was motor sail tacking down river, with wind as usual, coming straight up river. A guy in a Hunter 30 was doing the same but cross tacking and tagging along behind each move we made. A couple of times I just let my boat fall off and let him go by. Maybe they were learning how the H30 handles with just the main. (pretty good from I observed) My ole mast head rig is a slug with just the main. One time we were both tacking me to starboard him to port and we were coming bow to bow by maybe 50 yards.. and yup... ZOOM goes a stink pot right between 2 sailboats.. Again.. just easier to luff a little and not get excited. I then fell behind H30
If you were motor sailing, then you weren't a sailboat, you were a powerboat.